docs: def check_street_prefix(self, token):
          """
          Finds street prefixes, such as N. or Northwest, before a street name. Standardizes to 1 or two letters, followed
          by a period.
          """
          if self.street and not self.street_prefix and token.lower().replace('.', '') in self.parser.prefixes.keys():
              self.street_prefix = self._clean(self.parser.prefixes[token.lower().replace('.', '')])
              return True
          return False